According to [1]} if we start with a \((\Delta ,l)\)  primary \(S^{\Delta }_{a_1a_2...a_l}\)  in an Euclidean \(CFT_d\)  – \(d=4\)  in this paper – then there are three types of primary descendants that one can obtain depending on the values of \(\Delta \)  and \(l\) . They are given as follows :
